Pump.



c. MoUKos.

. PUMP.

APPLICATION FILED MAR. 5, 1909.

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ANDREW B GRAHAM PNDTo mummvuzas wAsh New# f Patented Mar. 29, 1910.

G. MOUKOS.

PUMP. APPLICATION FILED MAR. 5, 1909.

Patented Mar. '29, 1910.

4 SHEETS-SHEET 2.

C. MOUKOS.

PUMP.

APPLICATION FILED MAB. 5, 19.09.

953,430., Patented Mar. .29, 1910.

jl-Q 7 Mlg F W E4@ C. MOUKOS.

PUMP.

APPLICATION FILED MAR.5, 1909. v 953,43., Patented Mar. 29, 1910.

4 SHEETS-SHEET 4.

w i: Q@ U* 'M w H i il W `EEEE ET STA.

CHARLES MOUKOS, OF CHICAGO, ILLINOIS.

PUMP.

Specification of Letters Patent.

Patented Mar. 29, i910.

Application filed March 5, 1909. Serial No. 481,454.

To all whom it may concern.'

Be it known that I, CHARLES MoUKos, a citizen of the United States, anda resident of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Pumps;and I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form apart of this speciiication.

This invention relates to improvements in pumps and belongs to thatclass of pumps which may be denominated combined rotary andreciprocating', and adapted for use in jnm'iping fluids of any kindeither as an exhaust or suction, pressi'u'e or force pump, as preferred.

The object of the invention is to afford a rotar)v pump of high capacityin which reciprocating or sliding valves are employed to control orregulate pressure.

llt is also an object of the invention to attord a construction ofextreme simplicity having few parts, and not likely to get out of orderand adapted to be very positive in operation and to operate practicallywithout packing of any kind.

It is furthermore an object of the invention to afford a reciprocating'element in connection with a rotary pump or motor adapted to aitoidmaximum efficiency although not packed in any manner.

The invention also has for its object an exceedingly cheap, simple anddurable pump or device of the class described having few parts and notlikely to get readily out of order and in which all functions areperformed automatically by the rotation of the pumping cylinder.

rlhe invention consists in the matters hereinafter described and morefully pointed out and defined in the appended claims.

In the drawings: Figure l is a section taken longitudinally of the shaftand showing the rotative cylinder half in side elevation and half invertical central section, substantially on line l-l of Fig. 2. Fig. 2 isa section on line QMQ of Fig. l. Fig. 3 is an enlarged view inlongitudinal section of the sliding valves and the reciprocating stemtherefor. Fig. l is an enlarged bottom plan view of the casting orfitting containing the inlet or exhaust ports. Fig. 5 is a view in sideelevation of the shifting cam for the valve stem. Fig. 6 is an endelevation illustrating the anti-friction roller in the end of the vlavestem. Fig. 7 is an enlarged, vertical section of a machine embodying myinvention showing a slightly different mechanism for actuating the valvestems. Fig. 8 is a face view of the eccentric ring for actuating saidrods. Fig. 9 is an enlarged section on line 9-9 of Fig. 7. Fig. 10 is aview in elevation of the rotative cylinder showing the same removed fromthe casing. Fig. ll is a view of t-he outer casing with the cylinder andvalves removed. Fig. 12 is a sect-ion on line 12-12 of Fig. 3.

As shown in the drawings: A, indicates a cylindric casing or shellconstructed as shown, on its under side with foot pieces a, to enablethe casing to be secured upon a suitable foundation should it bedesired, or, in any event, to alford a support for the same. Said casingis cut away at its top to afford a relatively large and substantiallyrectangular opening therethrough to receive therein the inlet andexhaust fitting B, hereinafter more fully described, and, as shown, eachend of said casing is closed by a head C-C, as shown in Fig. l, which isbolted rigidly to the ends of the casing and the centers c, thereofproject outwardly to afford relatively long bearings for the shaft D,which is journaled, as shown, at its ends in inwardly projecting bearingsleeves CZ, one at each end of the machine. Also litted in saidoutwardly projecting hub or boss at the center of each head, is a cam D,D2, respectively, of which, as shown, the cam D', shown in Figs. l and5, is substantially cylindric and is cut obliquely at its inner end toafford a relatively long inward throw or, in other words, is longer onits bottom, while the cam D2, is complemental, therewith and is longestat its top. Both of said cams are rigidly secured in place by means ofbolts or in any suitable manner and extending therethrough and throughthe bearing sleeve and hub boss, c, is an oil pipe or tube c, whichserves also to assist in holding said cams rigidly in place. Rigidlysecured on the shaft D, in said easing and fitting quite closely thereinand between the heads C-C, is what I have termed the rotative cylinderor piston E. This, as shown more fully in Figs. l, 2 and 7, is casthollow, if preferred, and is provided with a plurality of peripheralrelatively narrow but deep grooves, extending peripherally around thesame and approximately half-way from the periphery to the shaft, saidgrooves being indicated by 6 6. Cor-ed in said cylinder or pistonlongitudinally and equal distances from the center, and arranged equaldistances apart are three tubular cylindric seats for the reciprocatingvalve stems F, which, as shown in Figs. ,1, 2 and 3, each comprises atube f, of the requisite length having fitted therein a stem or rod f,jonrnaled on the outer end of which, in any suitable manner, is ananti-friction roller f2, adapted to track on the cam D. Said tube isslotted longitudinally and near its center and fitted therein andrigidly engaged thereto is a plate G, having integrally connectedtherewith at its outer edge valve plates gg. Said stem or rod f',engages the end plate G, as shown in dotted lines in Fig. 3, and in theother end of said tubular stem is inserted a rod f4, which also isslotted at its inner end to engage the end of the plate G, and is alsobored or cored in its inner end to receive a spring the end of whichbears against the end of said plate and acts to hold said rod f4,outwardly. Journaled on the outer end of said rod j, in any suitablemanner is an anti-friction roller f2, such as before described, andseated in said rod or bar ft, and extending into an aperture in the tubef, is a pin or screw f6, which limits the outer adjustment of said rod.

The cylinder, as shown, is slotted longitudinally in radial alinementwith each of said reciprocating stems to receive the plates g-g, whichprovide sliding valves, as shown in Figs. l and 2, and as the cylinderrotates carrying the valve stems therefor, it is obvious that said camsshift said stems longitudinally of said cylinder or piston therebyreciprocating the sliding valves across the grooves in said cylinder tosnceessively open and close the same.

The inlet and discharge passages open through the casting or fitting B,before described. rl`his,as shown, comprises a casting substantiallyrectangular in exterior outline adapted to be connected with pipes 'b-Qbetween which is an integral web b2, which separates the inner ends ofsaid pipes. As shown, said fitting extends inwardly and affords twoparallel inwardly extending legs Z-t, which project into the grooves 06, in the cylinder, and as shown, in Fig. il, are ported oppositely. Asshown also, said legs and the space between the same are recessed orchanneled in any suitable manner to permit Babbitt or otheranti-friction metal to be secured thereto, and Babbitt or otheranti-friction metal is cast thereon, as shown at o, in Figs. l and 2,said Babbitt coating being preferably cast in place after said exhaustfitting has been fitted to the cylinder or piston.

l rl`he operation is as follows: The pump is driven in any suitablemanner by power applied to the shaft l), and the fluid to be pumped maybe introduced through either the pipe Z), or W, dependent upon thedirection of rotation. The rotation of the cylinder acts to shift thevalve plates longitudinally the cylinder, opening the grooves orchannels as lsaid plates approach the legs NFL", in passing which saidplates are concealed wholly within the body of the cylinder, as shown inFigs. l and 7, while the corresponding plates at the lower part of saidcylinder, and although not necessarily tight tting therein, and althoughdestitute of packing of any kind, ser-ve to force the fluid or liquid inadvance thereof around the pump and ont at the other pipes Z), or ZJ,the valve plates, of course, retraoting into the body of the cylinder asbefore described, as the plates approach the discharge. Inasmuch as thevalve stems are provided with anti-friction rollers in the ends thereof,little friction is occasioned by such operation and the rods or stemsf-f4, being adjusted to exactly fit between the cams, it follows thatthere can be no hammering or binding due to the operation although thepump may be driven at a high rate of speed.

Of course, l am well aware that other means may be employed forreciprocating the valve plates and l have shown in Figs. 7, to 5linclusive a slightly different construction for actuating the valvestems. For this purpose, as shown, the limer face of the hub is shapedto afford an inclined or cam face at one end thereof indicated by 64,and rigidly bolted thereon is a collar 65, internally threaded and inwhich is engaged a flanged collar e, the flange of which projectsnpwardly and inwardly and affords a recess between the same and the baseof the collar 6". Seated in said recess and rotatable therein is a ringc7, provided, as shown, at 120o apart with three pairs of upwardlyextending lugs 6*, adapted to engage therebetween the exterior roundedend of a link c, through which extends a pintle 6W, pivotally engagingsaid link on said ring. A t its inner end said link is pivotally engagedin the valve stem F, by means of a pintle fl. As shown, the valve platesare secured in place in said stem substantially as before described, andthe stem may be made hollow o-r tubular, for the rest of its length forlightness, if desired, and, of course, if preferred, ball bearings maybe provided for the rings ('T. rlhe operation is in all respects asbefore described except that in this instance, the stems arereciprocated from one end only and are pulled and pushed back and forthby the rotation of said cylinder, said inclined ring serving as a 'amtor that purpose.

the cylinder still lap across the grooves in Of course, a pumpconstructed as described may be made of any desired capacity by varyingthe size of the parts or by extending the length of the cylinder andproviding a greater number of channels or grooves, in which event, ofcourse, the inlet and outlet passages will be connected with a suitablenumber of inwardly extending legs such as 22S-b4, to afford one for eachof said grooves or channels.

Obviously any suitable device may be employed for reciprocating thesliding valves, and I do not purpose limiting this application in thisrespect, but instead do not purpose limiting this application otherwisethan necessitated by the prior art for many details of construction andarrangement may be varied without departing from the principles of thisinvention.

I claim as my invention:

1. The combination with a cylindric casing of an inlet and an outletpipe communieating therewith, a rotatable cylinder in said casingprovided with relatively broad peripheral channels, axiallyreciprocating valve plates slidable to close and to open said channelsand a tting secured to the casing having a plurality of legs to closethe passages and provided with inlet and outlet passages.

2. The combination with a cylindric casing of a rotatable cylindertherein having deep and broad peripheral channels extending around thesame, an inlet and an outlet fitting' extending into said channel andfilling the same at one point in the casing, independent inlet andoutlet pipes opening through said fitting into said cylinder oppositely,sliding valves in said cylinder of a width to close said channels, meansfor actuating the valves to shift the same to wholly open the channel atsaid inlet and outlet positions and to wholly close the channel afterpassing said positions, and anti-friction means for shifting saidvalves.

3. In a device of the class described a casing, a rotatable cylinderhaving deep broad peripheral channels therein, valves slidablelongitudinally of the cylinder to open and close said channels,anti-friction means for actuating said valves, an inlet and an outletfitting extending into the casing having parallel legs, one legextending into each channel and ported oppositely providing an inletpassage and an outlet passage for each channel, and anti-frictionbearing metal lining the outer side of said legs in said channels.

at. A pump of the class described embracing a rotatable cylinder havingperipheral channels therein, valves slidable across said channels toclose the same at a plurality of points in the rotation of the cylinder,antifriction means for shifting the valves, an inlet and an outletfitting extending into l said channels and closing the same at onepoint, and ported oppositely therethrough, and mechanism for shiftingthe valves to retract the same to the body of the cylinder whenapproaching said inlet and outlet positions.

5. A pump comprising a casing, a rotatable channeled cylinder therein,valves for closing and opening the channels in said cylinder, cams atthe ends of the casing, a tubular stem secured to each valve, a mem.-ber slidably secured in each end of the tubular stem and a spring forforcing one of the members outwardly to hold the members against thecams.

6. In a device of the class described a casing, a rotatable membertherein having peripheral channels, tubular stems slidablelongitudinally of the rotatable members, plates secured thereto forclosing and opening the channels, anti-friction rollers extending 'romeach end of the stem and one slidably mounted, a spring for forcing theslidably mounted roller outwardly and cam members at the ends of thecasing against which the rollers engage for adjusting the platesaxially.

7. In a device of the class described a casing, a rotatable membertherein having peripheral channels, tubular stems slidablelongitudinally of the rotatable members, plates secured thereto forclosing and opening the channels, anti-friction rollers extending fromeach end of the stem and one slidably mounted` a spring for forcing theslidably mounted roller outwardly, cam members at the ends of the casingagainst which the rollers engage for adjusting the plates axially, and afitting seated in the casing having a plurality of legs7 one extendinginto each channel and ported oppositely providing an inlet and an outletpassage in each leg.

ing, a rotary cylinder therein having peripheral channels, valves forclosing and opening the channels, a member extending into the casingprovided with parallel legs, one fitting into each channel and eachprovided with oppositely opening inlet and outletpassages and all of theinlet passages in the legs communicating and all of the outlet passagescommunicating.

9. A device of the class described embracing a casing, heads thereon,having outwardly extended hollow hubs, a cam in one hub, a shaftjournaled axially in said casing, a cylinder rigidly secured thereonrotatable therewith and having a plurality of broad deep channelsextending circumferentially around the same and having longitudinalslots at equal distances apart and extending radially inwardly in thecylinder, valve plates slidable in said slots to open and close thechannels, a stem for the valve plates of 8. In a device of the classdescribed a caseach slot, anti-friction bearing means on the l end ofeach stem engaging the cam in said hub, inlet and outlet ports openinginto said channels oppositely and separated each from each therein, andmeans for adjusting the stems to vary the throw of the valves.

l0. A pump embracing a easing, a rotatable cylinder therein havingperipheral channels and a fitting secured to the casing having legsextending into and closing the channels and inlet and outlet passagesopening oppositely from each leg into each channel.

ll, A pump embracing a casing, a rotatable cylinder therein havingperipheral channels, a fitting secured to the casing having legsextending into and closing the channels, inlet and outlet passagesopening oppositely from each leg into each channel, valves normallyclosing the channels, stems secured thereto projecting from oppositeends of the c vlinder and members engaging the ends of the stems andpositively7 shifting the same to adjust the valves to open the channelswhen passing the legs.

l2. ln a device of the class described a casing, a rotatable channeledcylinder therein,'reciprocating valve plates for closing and opening thechannels and means for actuating the valve plates comprising a tubeconnected with the valve plates, a stem in each end thereof, ananti-friction roller in the outer end of each stem, and oppositelydisposed cams for engaging the anti-friction rollers therebetween andreciprocating the valve plates.

13. ln a device of the class described a casing, a head on each endthereof having an enlarged hub providing a chamber, a cam member securedin each chamber in the hub, a bearing sleeve secured in each hub, ashaft extending through the bearing sleeves, a cylinder secured to theshaft and rotatable in said casing provided with peripheral channels,f'alves for closing and opening the channels, means connected with thevalves and operated by the cam members secured in the chambers in theheads, and an inlet and outlet fitting secured to the casing having legsextending into the channels, each ported oppositely to provide an inletand an outlet passage in each leg.

14. ln a device of the class described a casing, a head on each endthereof having an enlarged hub providing a chamber, a cam member securedin each chamber in the hub, a bearing sleeve secured in each hub, ashaft extending through the bearing sleeves, a cylinder secured to theshaft and rotatable in said casing provided with peripheral channels,valves for closing and opening the channels, means connected with thevalves and operated by the cam members secured in the chambers in theheads, oil pipes or tubes extending through the cams and bearing sleevesrigidly holding the cams in position and adapted to deliver lubricant tothe bearings.

15. ln a device of the class described a casing, a head on each endthereof having an enlarged hub providing a chamber, a cam member securedin each chamber in the hub, a bearing sleeve secured in each hub, ashaft extending through the bearing sleeves, a cylinder secured to theshaft and rotatable in the casing provided with peripheral channels,valves for closing and opening the channels, means connected with thevalves and operatedby the cam members secured in the chambers in theheads, and a fitting secured to the casing adapted to close all of thechannels at one point and provided with inlet and outlet passages foreach channel.

16. ln a device of the class described a casing, a rotatable channeledcylinder therein, valves for opening and closing the channels,comprising a tube, a plate therein, plate valves integral with saidplate, stems in each end of the tube, one provided with a recesstherein, a spring in the recess bearing against the plate andanti-friction rollers secured to the outer ends of the stems.

ln testimony whereof l have hereunto subscribed my name in the presenceof two subscribing witnesses.

CHARLES MOUKOS.

`Witnesses K. E. HANNAi-r, LAWRENCE lnnzs'rnrx'.

